20808445 (number)

20808445 is an odd 8-digits composite number following 20808444 and preceding 20808446. In scientific notation, it is written as 2.0808445 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 13647744 positive integers (up to 20808445) that are relatively prime to 20808445.

Interesting facts

Basic properties

Name

Name twenty million eight hundred eight thousand four hundred forty-five

Notation

Scientific notation 2.0808445 × 10^7
Engineering notation 2.0808445 × 10^6

Prime Factorization of 20808445

Prime Factorization 5 × 7 × 23 × 25849

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20808445
Product of the distinct prime numbers

The prime factorization of 20808445 is 5 × 7 × 23 × 25849. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 2, 86, 50, 42, 3136, 3882, 8618, 46372, 724068, 548791, 6423391, 7961923, 63452066, 18118924, 911081504, 814469987, 8168478055, 4863664130

Basic calculations (n = 20808445)

Multiplication

n×y
n×2 41616890
n×3 62425335
n×4 83233780
n×5 104042225

Division

n÷y
n÷2 10404222.5
n÷3 6936148.3333333
n÷3 5202111.25
n÷5 4161689

Exponentiation

ny
n2 432991383318025
n3 9.009877385247E+21
n4 1.8748153802766E+29
n5 3.9011992725639E+36

Nth Root

y√n
2√n 4561.6274508118
3√n 275.05098779094
4√n 67.53982122283
5√n 29.083584089839

Divisors of 20808445

1, 5, 7, 23, 35, 115, 161, 805, 25849, 129245, 180943, 594527, 904715, 2972635, 4161689, 20808445

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20808444
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20808445 can be divided by 16 positive divisors. The sum of these divisors (counting 20808445) is 1, the average is 0.0625.

Base conversion 20808445

Base System Value
2 Binary 1001111011000001011111101
3 Ternary 1110011011211011
4 Quaternary 1033120023331
5 Quinary 20311332240
6 Senary 2021555221
8 Octal 117301375
10 Decimal 20808445
12 Duodecimal 6b75b11
16 Hexadecimal 13d82fd
20 Vigesimal 6a1125
36 Base36 cdzwd

Cryptographic Hash Functions

md5 7d3442a12a6ae1b062cd2fc84c81ec34
sha1 e4e76656a2c041749f7f2c81f206c7de948c59c4
sha256 47cda4333598d5c6e14166c0080314ce06a109eb0b1143b662aa5c1333a6f8c3
sha512 921d465df6dd7b1544f0fe79db30220cfe9833abd05c71e76d150de8705573dd96217a1533d4a2e623bf64804e99c5766ec992d6f248b126dadda172cb9fd2c9
ripemd-160 e09adf745cd5a22bd62ed87e5e795b74c9d6f139

20808445 as geometric shapes

Circle

Radius = n
Diameter 41616890
Circumference 130743315.88925
Area 1.3602825488996E+15

Sphere

Radius = n
Volume 3.7740486137649E+22
Surface area 5.4411301955984E+15
Circumference 130743315.88925

Square

Length = n
Perimeter 83233780
Area 432991383318025
Diagonal 29427585.130895

Cube

Length = n
Surface area 2597948299908150
Volume 9.009877385247E+21
Space diagonal 36041283.966503

Equilateral Triangle

Length = n
Perimeter 62425335
Area 1.8749076878659E+14
Altitude 18020641.983251

Triangular Pyramid

Length = n
Surface area 1.8749076878659E+14
Volume 1.0618242327946E+21
Height 9809195.0436315